Improved DC-EST structure with diode diverter

A novel emitter switched thyristor (EST) structure with a diode diverter is introduced to obtain superior current saturation characteristics with an excellent forward bias safe operating area without compromising the on-state voltage drop. The new structure consists of a diode diverter connected to the p-base region of the DC-EST. The saturation current density is lowered significantly, which is desirable to achieve a good saturation current safe operating area. Experimental results are reported to confirm the superior characteristics observed through simulations